srsLTE 20.10

• Add Mobility (Intra eNB and S1) and RRC Reestablishment to srsENB
• Add new logging framework
• Make UE PHY layer non-blocking
• Replace some PHY pre-calculations with fast on-the-fly routines
• Fix QAM256 support in srsENB
• Add initial NR PHY layer and stack components
• Other bug-fixes and improved stability and performance in all parts

srsLTE 20.04.2

• Fix attach issue for some newer phones like Iphone X or OnePlus 6T

srsLTE 20.04.1

• Fix for UE MIMO segfault issue
• Fix for eNodeB SR configuration
• Clang compilation warning fixes
• Fix GPS tracking synchronization

srsLTE 20.04

NOTE: Recommended to use srsLTE 20.04.1 (see here)

• Carrier Aggregation and Time Alignment in srsENB
• Complete Sidelink PHY layer (all transmission modes)
• Complete NB-IoT PHY downlink signals
• New S1AP packing/unpacking library
• EVM and EPRE measurements
• Remove system timers in srsUE and srsENB
• Refactor eNB to prepare for mobility support
• Other bug-fixes and improved stability and performance in all parts

srsLTE 19.12

• Add 5G NR RRC and NGAP ASN1 packing/unpacking
• Add sync routines and broadcast channel for Sidelink
• Add cell search and MIB decoder for NB-IoT
• Add PDCP discard
• Improve RRC Reestablishment and cell measurements and procedure handling
• Add multi-carrier and MIMO support to ZMQ radio
• Refactor eNB scheduler to support multiple carriers
• Apply clang-format style on the entire code base
• Other bug-fixes and improved stability and performance in all parts

srsLTE 19.09

• Add initial support for NR in MAC/RLC/PDCP
• Add sync code for NB-IoT
• Add support for EIA3/EEA3 (i.e. ZUC)
• Add support for CSFB in srsENB
• Add adaptation layer to run TTCN-3 conformance tests for srsUE
• Add High Speed Train model to channel simulator
• Rework RRC and NAS layer and make them non-blocking
• Fixes in ZMQ, bladeRF and Soapy RF modules
• Other bug-fixes and improved stability and performance in all parts

srsLTE 19.06

• Add QAM256 support in srsUE
• Add QoS support in srsUE
• Add UL channel emulator
• Refactor UE and eNB architecture
• Many bug-fixes and improved stability and performance in all parts

srsLTE 19.03

• PHY library refactor
• TDD support for srsUE
• Carrier Aggregation support for srsUE
• Paging support for srsENB and srsEPC
• User-plane encryption for srsENB
• Channel simulator for EPA, EVA, and ETU 3GPP channels
• ZeroMQ-based fake RF driver for I/Q over IPC/network
• Many bug-fixes and improved stability and performance in all parts

srsLTE 18.12

• Add new RRC ASN1 message pack/unpack library
• Refactor EPC and add encryption support
• Add IPv6 support to srsUE
• Fixed compilation issue for ARM and AVX512
• Add clang-format file
• Many bug-fixes and improved stability and performance in all parts

srsLTE 18.09

• Improved Turbo Decoder performance
• Configurable SGi interface name and M1U params
• Support for GPTU echo mechanism
• Added UE detach capability
• Refactor RLC/PDCP classes
• Various fixes for ARM-based devices
• Added support for bladeRF 2.0 micro
• Many bug-fixes and improved stability and performance in all parts